San Pablo Bay National Wildlife Refuge Weather Forecast

    • 50
    • 80

    Becoming Sunny

    • 49
    • 76

    Mostly Sunny

    • 50
    • 76

    Mostly Sunny

    • 51
    • 76

    Mostly Sunny

    • 49
    • 76

    Partly Sunny

    • 49
    • 75

    Partly Sunny

Today 21 Mar North Bay Interior Valleys

Partly cloudy in the morning then becoming sunny. Highs in the lower 70s to mid 80s. West Winds 5 to 15 Mph. Gusts up to 30 Mph in the afternoon.

Tonight 21 Mar North Bay Interior Valleys

Mostly clear. Lows in the mid 40s to upper 50s. West Winds 5 to 15 Mph. Gusts up to 30 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Pablo Bay National Wildlife Refuge Temperature Statistics

March Temperature

Napa, Napa County Airport (5.6 miles)

  • Lowest 5 March, 2026

    37.7 °F

  • Average March

    59.9 °F

  • Highest 18 March, 2026

    86.6 °F

Climate (2021–Present)

Napa, Napa County Airport (5.6 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    58.3 °F

  • Average High 2021–2026

    70.2 °F
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